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annotate src/share/vm/ci/ciObjectFactory.hpp @ 17467:55fb97c4c58d hs25-b65
8029233: Update copyright year to match last edit in jdk8 hotspot repository for 2013
Summary: Copyright year updated for files modified during 2013
Reviewed-by: twisti, iveresov
| author | mikael |
|---|---|
| date | Tue, 24 Dec 2013 11:48:39 -0800 |
| parents | f98f5d48f511 |
| children | d8041d695d19 2c6ef90f030a |
| rev | line source |
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| 0 | 1 /* |
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2 * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_CI_CIOBJECTFACTORY_HPP |
| 26 #define SHARE_VM_CI_CIOBJECTFACTORY_HPP | |
| 27 | |
| 28 #include "ci/ciClassList.hpp" | |
| 29 #include "ci/ciObject.hpp" | |
| 30 #include "utilities/growableArray.hpp" | |
| 31 | |
| 0 | 32 // ciObjectFactory |
| 33 // | |
| 34 // This class handles requests for the creation of new instances | |
| 35 // of ciObject and its subclasses. It contains a caching mechanism | |
| 36 // which ensures that for each oop, at most one ciObject is created. | |
| 37 // This invariant allows efficient implementation of ciObject. | |
| 38 class ciObjectFactory : public ResourceObj { | |
| 3939 | 39 friend class VMStructs; |
| 40 friend class ciEnv; | |
| 41 | |
| 0 | 42 private: |
| 43 static volatile bool _initialized; | |
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44 static GrowableArray<ciMetadata*>* _shared_ci_metadata; |
| 0 | 45 static ciSymbol* _shared_ci_symbols[]; |
| 46 static int _shared_ident_limit; | |
| 47 | |
| 48 Arena* _arena; | |
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49 GrowableArray<ciMetadata*>* _ci_metadata; |
| 0 | 50 GrowableArray<ciMethod*>* _unloaded_methods; |
| 51 GrowableArray<ciKlass*>* _unloaded_klasses; | |
| 1602 | 52 GrowableArray<ciInstance*>* _unloaded_instances; |
| 0 | 53 GrowableArray<ciReturnAddress*>* _return_addresses; |
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54 GrowableArray<ciSymbol*>* _symbols; // keep list of symbols created |
| 0 | 55 int _next_ident; |
| 56 | |
| 57 public: | |
| 58 struct NonPermObject : public ResourceObj { | |
| 59 ciObject* _object; | |
| 60 NonPermObject* _next; | |
| 61 | |
| 62 inline NonPermObject(NonPermObject* &bucket, oop key, ciObject* object); | |
| 63 ciObject* object() { return _object; } | |
| 64 NonPermObject* &next() { return _next; } | |
| 65 }; | |
| 66 private: | |
| 67 enum { NON_PERM_BUCKETS = 61 }; | |
| 68 NonPermObject* _non_perm_bucket[NON_PERM_BUCKETS]; | |
| 69 int _non_perm_count; | |
| 70 | |
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71 int find(Metadata* key, GrowableArray<ciMetadata*>* objects); |
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72 bool is_found_at(int index, Metadata* key, GrowableArray<ciMetadata*>* objects); |
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73 void insert(int index, ciMetadata* obj, GrowableArray<ciMetadata*>* objects); |
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74 |
| 0 | 75 ciObject* create_new_object(oop o); |
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76 ciMetadata* create_new_object(Metadata* o); |
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77 |
| 0 | 78 static bool is_equal(NonPermObject* p, oop key) { |
| 79 return p->object()->get_oop() == key; | |
| 80 } | |
| 81 | |
| 82 NonPermObject* &find_non_perm(oop key); | |
| 83 void insert_non_perm(NonPermObject* &where, oop key, ciObject* obj); | |
| 84 | |
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85 void init_ident_of(ciBaseObject* obj); |
| 0 | 86 |
| 87 Arena* arena() { return _arena; } | |
| 88 | |
| 89 void print_contents_impl(); | |
| 90 | |
| 1602 | 91 ciInstance* get_unloaded_instance(ciInstanceKlass* klass); |
| 92 | |
| 0 | 93 public: |
| 94 static bool is_initialized() { return _initialized; } | |
| 95 | |
| 96 static void initialize(); | |
| 97 void init_shared_objects(); | |
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98 void remove_symbols(); |
| 0 | 99 |
| 100 ciObjectFactory(Arena* arena, int expected_size); | |
| 101 | |
| 102 // Get the ciObject corresponding to some oop. | |
| 103 ciObject* get(oop key); | |
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104 ciMetadata* get_metadata(Metadata* key); |
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105 ciSymbol* get_symbol(Symbol* key); |
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106 |
| 0 | 107 // Get the ciSymbol corresponding to one of the vmSymbols. |
| 108 static ciSymbol* vm_symbol_at(int index); | |
| 109 | |
| 110 // Get the ciMethod representing an unloaded/unfound method. | |
| 111 ciMethod* get_unloaded_method(ciInstanceKlass* holder, | |
| 112 ciSymbol* name, | |
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113 ciSymbol* signature, |
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114 ciInstanceKlass* accessor); |
| 0 | 115 |
| 116 // Get a ciKlass representing an unloaded klass. | |
| 117 ciKlass* get_unloaded_klass(ciKlass* accessing_klass, | |
| 118 ciSymbol* name, | |
| 119 bool create_if_not_found); | |
| 120 | |
| 1602 | 121 // Get a ciInstance representing an unresolved klass mirror. |
| 122 ciInstance* get_unloaded_klass_mirror(ciKlass* type); | |
| 123 | |
| 124 // Get a ciInstance representing an unresolved method handle constant. | |
| 125 ciInstance* get_unloaded_method_handle_constant(ciKlass* holder, | |
| 126 ciSymbol* name, | |
| 127 ciSymbol* signature, | |
| 128 int ref_kind); | |
| 129 | |
| 130 // Get a ciInstance representing an unresolved method type constant. | |
| 131 ciInstance* get_unloaded_method_type_constant(ciSymbol* signature); | |
| 132 | |
| 0 | 133 |
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134 ciInstance* get_unloaded_object_constant(); |
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135 |
| 0 | 136 // Get the ciMethodData representing the methodData for a method |
| 137 // with none. | |
| 138 ciMethodData* get_empty_methodData(); | |
| 139 | |
| 140 ciReturnAddress* get_return_address(int bci); | |
| 141 | |
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142 GrowableArray<ciMetadata*>* get_ci_metadata() const { return _ci_metadata; } |
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143 // RedefineClasses support |
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144 void metadata_do(void f(Metadata*)); |
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145 |
| 0 | 146 void print_contents(); |
| 147 void print(); | |
| 148 }; | |
| 1972 | 149 |
| 150 #endif // SHARE_VM_CI_CIOBJECTFACTORY_HPP |